Date: Fri, 30 Jun 2000 17:36:48 -0700 From: Matthew Hunt <mph@astro.caltech.edu> To: R Joseph Wright <rjoseph@mammalia.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Inodes and filenames Message-ID: <20000630173648.A15414@wopr.caltech.edu> In-Reply-To: <20000630170905.A27488@manatee.mammalia.org>; from rjoseph@mammalia.org on Fri, Jun 30, 2000 at 05:09:05PM -0700 References: <20000630170905.A27488@manatee.mammalia.org>
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On Fri, Jun 30, 2000 at 05:09:05PM -0700, R Joseph Wright wrote:
> First, how can I find out whether an inode has more than one filename
> associated with it?
If you know one filename, ls -l shows the link count as the
field right after the permissions.
If you only know the number, one way is to use fsdb in read-only
mode:
$ fsdb -r /dev/rda0a
** /dev/rda0a (NO WRITE)
Examining file system `/dev/rda0a'
Last Mounted on /
current inode: directory
I=2 MODE=40755 SIZE=1024
MTIME=Jun 30 11:57:27 2000 [0 nsec]
CTIME=Jun 30 11:57:27 2000 [0 nsec]
ATIME=Jun 30 17:29:07 2000 [0 nsec]
OWNER=root GRP=wheel LINKCNT=27 FLAGS=0 BLKCNT=2 GEN=76c87c41
fsdb (inum: 2)> inode 896
current inode: regular file
I=896 MODE=100555 SIZE=2301194
MTIME=Jun 25 12:34:06 2000 [0 nsec]
CTIME=Jun 25 12:34:06 2000 [0 nsec]
ATIME=Jun 25 23:19:16 2000 [0 nsec]
OWNER=root GRP=wheel LINKCNT=1 FLAGS=0x20000 BLKCNT=11a0 GEN=4761b8ff
^^^^^^^^^
(This happens to be /kernel on my machine.)
A slower approach is to use find(1) with the "-inum" flag, but
then you'll know the filenames too.
> Second, can I delete a file by specifying the inode rather than the
> filename?
You could combine find(1)'s "-inum" and "-delete" flags, or use
clri or fsdb (and then fsck).
--
Matthew Hunt <mph@astro.caltech.edu> * Inertia is a property
http://www.pobox.com/~mph/ * of matter.
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